I've been using that new liver of sulphur extended life gel and have to say, it is worth every cent. In fact, worth its weight in gold!
I'm using it constantly to oxidize sterling silver findings, wire, beads etc. It doesn't even need to be measured exactly--I just find a little container big enough to hold whatever I'm oxidizing, add warm water to cover, squirt a few drops of gel in and presto! Perfectly oxidized stuff.
I'm so glad you guys are carrying it now!
http://shop.rings-things.com/cart/pc/viewPrd.asp?idcategory=1990&idproduct=22835 
I had to go back and put the rockin' banana in.....